Leslie Carter, sister of Nick Carter of The Backstreet Boys and pop star Aaron Carter, died on Jan. 31, 2012 at age 25 in her father's and stepmother's house in Mayville in upstate New York. Leslie Carter, who was known as Leslie Ashton, is survived by husband Mike, who she married in 2008, and their daughter Alyssa Jane Ashton. The child was born in early April 2011. A police report later suggested that Ashton died of a prescription drug overdose. Her stepmother, Ginger Carterm told authorities that hours before the woman was pronounced dead, she acted depressed. She said she later found that Ashton had fallen in the shower. She said she laid her on a bed and even put her daughter on it 'in the hopes that Ashton would wake up and play with the baby,' according to a police report obtained by OnTheRedCarpet.com. Ginger Carter did not specify the exact time she found Ashton in the shower or how much time the woman spent inside the bedroom. She said her husband and Ashton's father, Robert, came home soon around 4:16 p.m. and that the woman was 'not breathing or responding.' Robert Carter then tried to perform CPR on her. The police report states that Ginger Carter called 911 at 4:10 p.m. to report that Ashton was 'asleep on her bed and not breathing.' Paramedics arrived and transported her to a hospital, where she was pronounced dead at 4:59 p.m. In 2006, Ashton appeared in the E! Entertainment Television reality series, "House of Carters" with her brother Nick, who turned 32 on January 28; her brother Aaron and his twin sister Angel, 24, and her sister Bobbie Jean, 30. The show aired for one season. In 2001, the rising starlet put out her first and only single, "Like Wow!," which was not a commercial success but did appeared on the soundtrack of "Shrek" soundtrack and in the film's end credits. (Leslie Carter appears with her family in a promotional photo for the E! reality series 'House of Carters.' / Leslie Carter in a promotional photo for the E! reality series 'House of Carters.') (E! Entertainment Television)

Backstreet Boys singer Nick Carter's sister Leslie may have died from an overdose of prescription drugs, OnTheRedCarpet.com has learned, while authorities continue to investigate the cause of her mysterious death.

Olanzapine, a drug used to relieve symptoms of schizophrenia, the muscle relaxant Cyclobenzaprine and Alprazolam, used to treat anxiety disorders and panic disorder, were found on the scene, according to a report by the Chautauqua County Sheriff's Office that was obtained by OnTheRedcarpet.com.

The incident was dubbed an "overdose" in the report, which also said the local coroner's office plans to carry out a full autopsy to determine what led to the death.

Her stepmother, Ginger Carter, told police Ashton and her 10-month-old daughter were staying at her home and that she found her in the shower, after which she did not wake up. Ashton had previously lived in Ontario, Canada. Her father, Robert, 59, tried to revive his daughter before paramedics arrived at the house.

"Upon speaking with Ginger and Robert, they stated that Ashton has a long history of mental illness and was on medication for her depression," the report says.

Ginger Carter, 37, also told authorities that she takes medication to treat her own depression, according to the report. It stated that while she spoke with police, she "appeared to be under the influence of an unknown drug" and "had slurred speech, pin point pupils, glassy eyes and kept falling asleep."

"Ginger stated that she took 5-6 pills for her depression," the report said. "Ginger stated that she is only supposed to take 4, but Robert gave her an extra one because of Leslie passing away."

Ginger Carter told police Ashton woke up on Tuesday at about 10 a.m. and later "seemed depressed." She said Ashton asked her to watch her baby "because she was not feeling great." Ginger Carter said she agreed and also made the woman breakfast but that she did not eat much of it.

She said Ashton went to the bathroom "for a while" and when she went to check on her, she found that "Ashton had fallen into the shower." She did not specify whether or not the woman was conscious or responsive.

"Ginger helped Ashton up from the shower and led her to Ginger's bedroom, where she laid Ashton on the bed," the report said. "Ginger does not know how long Ashton was in the bed but went into the bedroom with the baby and put [her] on the bed with Ashton in the hopes that Ashton would wake up and play with the baby."

"Ginger stated that Ashton did not wake up but seemed to be OK and just sleeping," the report added. "Ginger stated that she looked at Ashton and she had all the color to her skin and was breathing. Ginger took the baby out of the room and closed the door. A little while later, Ginger brought the baby back into the room and was feeding the baby on the bed."

Ginger Carter told police that Ashton "still did not wake up but seemed fine." She said she then took the baby out of the room and closed the door.

Ginger Carter did not specify the exact time she found Ashton in the shower or how much time the woman spent inside the bedroom.

"Robert came home soon thereafter and around 4:16 p.m., Ashton was found in the bedroom not breathing or responding," the police report quoted her stepmother as saying. "Robert tried to perform CPR on Ashton."

The police report states that Ginger Carter called 911 at 4:10 p.m. to report that Ashton was "asleep on her bed and not breathing." Paramedics arrived and transported her to a hospital, where she was pronounced dead at 4:59 p.m.

In 2006, Leslie Carter appeared in the E! Entertainment Television reality series, "House of Carters" with her brother Nick, who turned 32 on January 28; her brother Aaron and his twin sister Angel, 24, and her sister Bobbie Jean, 30. The show aired for one season.

Nick Carter, who once battled a 10-year-long addiction to alcohol and drugs such as cocaine, said he planned to still join the Backstreet Boys when the all-male group tours the United Kingdom and Ireland in April, saying on his Facebook page: Performing is cathartic to me. I am dedicating the rest of my tour to my sister since she loved to watch me perform."

He also said he plans to talk about his sister's death on the ABC show "Good Morning America" on Friday, February 3.